Just a quick note, the MMA7660FC is a pretty old device, not recommended for new designs. I strongly suggest using newer accelerometers such as the MMA845xQ, MMA865xFC or FXLS8471Q. There is also an app note AN4074 illustrating the use of the auto wake/sleep function on these devices.

Just a quick note, the MMA7660FC is a pretty old device, not recommended for new designs. I strongly suggest using newer accelerometers such as the MMA845xQ, MMA865xFC or FXLS8471Q. There is also an app note AN4074 illustrating the use of the auto wake/sleep function on these devices.